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tanの加法定理その2

Author:Bunryu Kamimura

New Resources

  • 正17角形 作図 regular 17-gon 2
  • 正17角形 作図 regular 17-gon
  • 目で見る立方体の2等分
  • 接点の作る円は内接円
  • sine-wave

Discover Resources

  • 右巻きと左巻き
  • Copy of 一葉双曲面,円錐面,二葉双曲面
  • 立方体の裏返し(上面エレベーター3)
  • 動点(三角形-1)
  • 2つの三角形の問題(場面の仕組み)

Discover Topics

  • Angles
  • Curve Sketching
  • Terms
  • Geometric Transformations
  • Circle
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